Mobile gas detection and cleaning device

ABSTRACT

A mobile gas detection and cleaning device including a main body, a purification module, a gas guider, a gas detection module a controlling module, a driving movement module and a position determining unit is disclosed. The gas detection module allows a user to carry for detecting gas in the environment around the user to obtain a gas detection datum, and a target position is wirelessly transmitted. The controller module receives the gas detection datum sent from the gas detection module and enables or disables the gas guider according to the gas detection datum. The controller module receives the target position wirelessly sent from the gas detection module for estimating a target track from a remaining distance relative to the target position and the main body. The driving movement module is controlled to move the main body along the target track to reach an area nearby the user for purifying the gas.

FIELD OF THE INVENTION

The present disclosure relates to a mobile gas detection and cleaningdevice, and more particularly to a mobile gas detection and cleaningdevice implemented in an indoor space.

BACKGROUND OF THE INVENTION

Recently, people pay more and more attention to the quality of the airaround their lives. For example, carbon monoxide, carbon dioxide,volatile organic compounds (VOC), PM2.5, nitric oxide, sulfur monoxideand even the suspended particles contained in the air that expose in theenvironment would affect the human health, and even harmful for thehuman life severely. Therefore, the quality of environmental air hasattracted the attention of various countries. Currently, how to detectthe air quality and avoid the harm accompany thereby is a problem thaturgently needs to be solved.

In order to confirm the quality of the air, it is feasible to use a gassensor to detect the air surrounding in the environment. If thedetection information can be provided in real time to warn the peoplestay in the environment, it would be helpful for the people to preventand/or evacuate from the hazard environment immediately and avoid fromaffecting the human health and the harm causing by the hazardous gasexposed in the environment. Therefore, it is a very good application touse a gas sensor to detect the air surrounding in the environment. Thegas purification device is a solution for the air-pollution of modernpeople to prevent inhalation of the hazardous gas. Therefore, how tocombine the gas purification device with a gas sensor, so as to detectthe air quality in real time, whenever and wherever, and provide thebenefits of purifying the air by the mobile purification module in anarea close to the user is a main developing subject in the presentdisclosure.

SUMMARY OF THE INVENTION

An object of the present disclosure is to provide a mobile gas detectionand cleaning device comprising a gas detection module and a mobile mainbody. The gas detection module allows a user to carry for detecting thegas in an environment surrounding the user to obtain a gas detectiondatum, and sending a target position therefrom wirelessly. The mobilemain body comprising a purification module, a gas guider, a controllingmodule and a driving movement module disposed thereon The controllingmodule receives the gas detection datum transmitted from the gasdetection module, so as to control the operation of the gas guider toenable or disable the purification of air. Moreover, the controllingmodule receives the target position sent from the gas detection moduleand calculates based on the target position to estimate a target trackfrom an information of remaining distance relative to the targetposition and a current position of the main body, whereby the drivingmovement module is driven to move the main body along the target track.Thus, the gas detection module carried by the user is combined with themobile man body carrying the purification module, the gas guider, thecontrolling module, and result in the driving movement module and theposition determining unit of the present invention, and achieve theobject of purifying the air in the area that the user approachingpreviously.

In accordance with an aspect of the present disclosure, a mobile gasdetection and cleaning device including a main body, a purificationmodule, a gas guider, a gas detection module, a controlling module, adriving movement module and a position determining unit is provided. Themain body includes at least one inlet, at least one outlet and agas-flow channel. The gas-flow channel is disposed between the at leastone inlet and the at least one outlet. The purification module isdisposed in the gas-flow channel for filtering the gas introducedthrough the gas-flow channel. The gas guider is disposed in the gas-flowchannel and located at a side of the purification module. The gas isinhaled through the at least one inlet, flows through the purificationmodule for filtration and purification, and is discharged out throughthe at least one outlet. The gas detection module allows a user to carryfor detecting the gas in an environment surrounding the user to obtain agas detection datum, transmitting the gas detection datum externally,and sending a target position through wireless transmission. Thecontrolling module is disposed within the main body and electricallyconnected to the gas guider, wherein the controlling module receives thegas detection datum transmitted from the gas detection module forprocessing and calculating and control the gas guider to enable ordisable filtration and purification of air. The driving movement moduleis disposed within the main body and electrically connected to thecontrolling module. The driving movement module includes a plurality ofrolling components disposed on a bottom of the main body and exposed tocontact with the ground, so that the plurality of rolling components canbe controlled to move the main body. The position determining unitincludes a plurality of positioning sensors. The plurality ofpositioning sensors are disposed within the main body and electricallyconnected to the controlling module, so as to detect an obstacle outsidethe main body, obtain position information of the main body and transmitthe position information to the controlling module for processing andcalculating. The controlling module receives the target position sentfrom the gas detection module wirelessly and calculates based on thetarget position to estimate a target track from a remaining distancerelative to the target position and a current position information ofthe main body, whereby the plurality of rolling components of thedriving movement module are driven to move the main body along thetarget track to approach an area nearby the user for purifying the gaspreviously.

The above contents of the present disclosure will become more readilyapparent to those ordinarily skilled in the art after reviewing thefollowing detailed description and accompanying drawings, in which:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a schematic view illustrating a mobile gas detection andcleaning device according to an embodiment of the present disclosure;

FIG. 1B is a schematic exterior view illustrating a part of the gasdetection module of the mobile gas detection and cleaning deviceaccording to the embodiment of the present disclosure;

FIG. 1C is a schematic interior view illustrating the related componentsof the gas detection module of the mobile gas detection and cleaningdevice according to the embodiment of the present disclosure;

FIG. 1D is a schematic exterior view illustrating the gas detectionmodule of the mobile gas detection and cleaning device according to theembodiment of the present disclosure;

FIG. 1E is a schematic exterior view illustrating the gas detectionmodule of the mobile gas detection and cleaning device with a hangingbelt according to the embodiment of the present disclosure;

FIG. 2A is a schematic cross-sectional view illustrating a purificationmodule of the mobile gas detection and cleaning device according to afirst embodiment of the present disclosure;

FIG. 2B is a schematic cross-sectional view illustrating a purificationmodule of the mobile gas detection and cleaning device according to asecond embodiment of the present disclosure;

FIG. 2C is a schematic cross-sectional view illustrating a purificationmodule of the mobile gas detection and cleaning device according to athird embodiment of the present disclosure;

FIG. 2D is a schematic cross-sectional view illustrating a purificationmodule of the mobile gas detection and cleaning device according to afourth embodiment of the present disclosure;

FIG. 2E is a schematic cross-sectional view illustrating a purificationmodule of the mobile gas detection and cleaning device according to afifth embodiment of the present disclosure;

FIG. 3A is a schematic exploded view illustrating the related componentsof the actuating pump of the mobile gas detection and cleaning deviceaccording to the embodiment of the present disclosure and from a frontperspective;

FIG. 3B is a schematic exploded view illustrating the related componentsof the actuating pump of the mobile gas detection and cleaning deviceaccording to the embodiment of the present disclosure and taken from arear perspective;

FIG. 4A is a schematic cross-sectional view illustrating the actuatingpump of the mobile gas detection and cleaning device according to anembodiment of the present disclosure;

FIG. 4B is a schematic cross-sectional view illustrating the actuatingpump of the mobile gas detection and cleaning device according toanother embodiment of the present disclosure;

FIGS. 4C to 4E schematically illustrate the actions of the actuatingpump of FIG. 4A;

FIG. 5A is a schematic exterior view illustrating a gas detection mainpart according to an embodiment of the present disclosure;

FIG. 5B is a schematic exterior view illustrating the gas detection mainpart according to the embodiment of the present disclosure and fromanother perspective angle;

FIG. 5C is a schematic exploded view illustrating the gas detection mainpart of the present disclosure;

FIG. 6A is a schematic perspective view illustrating a base of the gasdetection main part of the present disclosure;

FIG. 6B is a schematic perspective view illustrating the base of the gasdetection main part of the present disclosure and from anotherperspective angle;

FIG. 7 is a schematic perspective view illustrating a laser componentand a particulate sensor accommodated in the base of the presentdisclosure;

FIG. 8A is a schematic exploded view illustrating the combination of thepiezoelectric actuator and the base according to the present disclosure;

FIG. 8B is a schematic perspective view illustrating the combination ofthe piezoelectric actuator and the base according to the presentdisclosure;

FIG. 9A is a schematic exploded view illustrating the piezoelectricactuator of the present disclosure;

FIG. 9B is a schematic exploded view illustrating the piezoelectricactuator of the present disclosure and taken from another perspectiveangle;

FIG. 10A is a schematic cross-sectional view illustrating thepiezoelectric actuator accommodated in the gas-guiding-component loadingregion according to the present disclosure;

FIGS. 10B and 10C schematically illustrate the actions of thepiezoelectric actuator of FIG. 10A;

FIGS. 11A to 11C schematically illustrate gas flowing paths of the gasdetection main part of the present disclosure;

FIG. 12 schematically illustrates a light beam path emitted from thelaser component of the gas detection main body of the presentdisclosure; and

FIG. 13 a block diagram illustrating a configuration of a controlcircuit unit and the related components of the mobile gas detection andcleaning device according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present disclosure will now be described more specifically withreference to the following embodiments. It is to be noted that thefollowing descriptions of preferred embodiments of this invention arepresented herein for purpose of illustration and description only. It isnot intended to be exhaustive or to be limited to the precise formdisclosed.

Please refer to FIG. 1A and FIG. 2A. The present disclosure provides amobile gas detection and cleaning device including a main body 1, apurification module 2, a gas guider 3, a gas detection module 4, acontrolling module 5, a driving movement module 6 and a positiondetermining unit 7.

In the embodiment, the main body 1 includes at least one inlet 11, atleast one outlet 12 and a gas-flow channel 13. The gas-flow channel 13is disposed between the at least one inlet 11 and the at least oneoutlet 12.

In the embodiment, the purification module 2 is disposed in the gas-flowchannel 13 for filtering gas introduced through the gas-flow channel 13.The gas guider 3 is disposed in the gas-flow channel 13 and located at aside of the purification module 2. The gas is inhaled through the atleast one inlet 11, flows through the purification module 2 forfiltration and purification, and is discharged out through the at leastone outlet 12. Please refer to FIGS. 2A to 2E. The above-mentionedpurification module 2 is disposed in the gas-flow channel 13 and capableof being implemented in various embodiments. Preferably but notexclusively, as shown in FIG. 2A, the purification module 2 is a filterunit, which includes a filter screen 2 a. In the embodiment, the gas isintroduced into the gas-flow channel 13 by the gas guider 3, and isfiltered through the filter screen 2 a to adsorb the chemical smoke,bacteria, dust particles and pollen contained in the gas, so as toachieve the effects of filtration and purification of air. Preferablybut not exclusively, the filter screen 2 a is one selected from thegroup consisting of an electrostatic filter screen, an activated carbonfilter screen and a high efficiency particulate air (HEPA) filterscreen.

Preferably but not exclusively, as shown in FIG. 2B, the purificationmodule 2 is a photo-catalyst unit including a photo-catalyst 2 b and anultraviolet lamp 2 c disposed in the gas-flow channel 13 and spacedapart from each other at a distance. In the embodiment, the gas isintroduced into the gas-flow channel 13 by the gas guider 3, and thephoto-catalyst 2 b is irradiated with the ultraviolet lamp 2 c toconvert light energy into chemical energy of a chemical reaction todispose harmful gases and disinfect bacteria contained in the gas, sothat the gas introduced can be purified, and achieve the effects offiltration and purification of air. In an embodiment, the purificationmodule 2 is a photo-catalyst unit combined with the filter screen 2 a asshown in FIG. 2A, which are disposed in the gas-flow channel 13 togetherto enhance the effects of filtration and purification. Preferably butnot exclusively, the filter screen 2 a is one selected from the groupconsisting of an electrostatic filter screen, an activated carbon filterscreen and a high efficiency particulate air (HEPA) filter screen.

Preferably but not exclusively, as shown in FIG. 2C, the purificationmodule 2 is a photo-plasma unit including a nanometer irradiation tube 2d disposed within the gas-flow channel 13. When the gas is introducedinto the gas-flow channel 13 by the gas guider 3, the gas is irradiatedby the nanometer irradiation tube 2 d, and oxygen molecules and watermolecules contained in the gas are decomposed into high oxidizingphoto-plasma, which is ionic air flow capable of destroying organicmolecules. As a result, volatile formaldehyde, volatile toluene andvolatile organic (VOC) gases contained in the gas are decomposed intowater and carbon dioxide, so as to achieve the effects of filtration andpurification. In an embodiment, the purification module 2 of aphoto-plasma unit can be combined with the filter screen 2 a as shown inFIG. 2A, which are disposed in the gas-flow channel 13 together toenhance the effects of filtration and purification of air. Preferablybut not exclusively, the filter screen 2 a is one selected from thegroup consisting of an electrostatic filter screen, an activated carbonfilter screen and a high efficiency particulate air (HEPA) filterscreen.

Preferably but not exclusively, as shown in FIG. 2D, the purificationmodule 2 is a negative ionizer including at least one electrode wire 2e, at least one dust collecting plate 2 f and a boost power supplydevice 2 g. Each electrode wire 2 e and each dust collecting plate 2 fare disposed within the gas-flow channel 13. When a high voltage isprovided from the boost power supply device 2 g to the at least oneelectrode wire 2 e to discharge, the dust collecting plate 2 f hasnegative charge. When the gas is introduced into the gas-flow channel 13by the gas guider 3, each electrode wire 2 e discharges to make fineparticles in the gas to have positive charge, and then the fineparticles having positive charge are attached to the negatively chargeddust collecting plate 2 f, so as to achieve the effects of filtrationand purification. In an embodiment, the purification module 2 of anegative ionizer can be combined with the filter screen 2 a as shown inFIG. 2A, which are disposed in the gas-flow channel 13 together, toenhance the effects of filtration and purification of air. Preferablybut not exclusively, the filter screen 2 a is one selected from thegroup consisting of an electrostatic filter screen, an activated carbonfilter screen and a high efficiency particulate air (HEPA) filterscreen.

Preferably but not exclusively, as shown in FIG. 2E, the purificationmodule 2 is a plasma ion unit including an upper electric-fieldprotection screen 2 h, a high efficiency particulate air filter screen 2i, a high-voltage discharge electrode 2 j, a lower electric-fieldprotection screen 2 k and a boost power supply device 2 g. The upperelectric-field protection screen 2 h, the high efficiency particulateair filter screen 2 i, the high-voltage discharge electrode 2 j and thelower electric-field protection screen 2 k are disposed within thegas-flow channel 13. The high efficiency particulate air filter screen 2i and the high-voltage discharge electrode 2 j are located between theupper electric-field protection screen 2 h and the lower electric-fieldprotection screen 2 k. When a high voltage is provided from the boostpower supply device 2 g to the high-voltage discharge electrode 2 j todischarge, a high-voltage plasma column with plasma ion is formed. Whenthe gas is introduced into the gas-guiding channel 13 by the gas guider3, oxygen molecules and water molecules contained in the gas aredecomposed into positive hydrogen ions (H⁺) and negative oxygen ions (O₂⁻) by the plasma ion. As the positive hydrogen ions (H⁺) and negativeoxygen (O₂ ⁻) ions surrounding substances are absorbed with waterattached on the surface of viruses and bacteria and changed into OHradicals, it would convert into Reactive oxygen species (ROS) withextremely strong oxidizing power under chemical reaction, and take awaythe hydrogen (H) from the protein on the surface of viruses and/orbacteria, thus decomposing the protein and suppressing their activity,so as to achieve the effects of filtration and purification ofintroduced air. In an embodiment, the purification module 2 of a plasmaion unit can be combined with the filter screen 2 a as shown in FIG. 2A,which are disposed in the gas-flowing channel 13 together to enhance theeffects of filtration and purification of air. Preferably but notexclusively, the filter screen 2 a is one selected from the groupconsisting of an electrostatic filter screen, an activated carbon filterscreen and a high efficiency particulate air (HEPA) filter screen.

Please refer to FIGS. 2A to 2E. In the embodiment, preferably but notexclusively, the gas guider 3 is a fan, such as a vortex fan or acentrifugal fan. Alternatively, the gas guider 3 is an actuating pump30, as shown in FIGS. 3A, 3B, 4A and 4B. In the embodiment, theactuating pump 30 includes a gas inlet plate 301, a resonance plate 302,a piezoelectric actuator 303, a first insulation plate 304, a conductingplate 305 and a second insulation plate 306, which are stacked on eachother sequentially. In the embodiment, the gas inlet plate 301 includesat least one inlet aperture 301 a, at least one convergence channel 301b and a convergence chamber 301 c. The at least one gas inlet aperture301 a is disposed to inhale the gas. The at least one gas inlet aperture301 a correspondingly penetrates through the gas inlet plate 301 intothe at least one convergence channel 301 b, and the at least oneconvergence channel 301 b is converged into the convergence chamber 301c. Therefore, the gas inhaled through the at least one gas inletaperture 301 a is converged into the convergence chamber 301 c. Thenumber of the gas inlet apertures 301 a is the same as the number of theconvergence channels 301 b. In the embodiment, the number of the gasinlet apertures 301 a and the convergence channels 301 b is exemplifiedby four, but not limited thereto. The four gas inlet apertures 301 apenetrate through the gas inlet plate 301 into the four convergencechannels 301 b respectively, and the four convergence channels 301 bconverge to the convergence chamber 301 c.

Please refer to FIGS. 3A, 3B and 4A. The resonance plate 302 is attachedon the gas inlet plate 301. The resonance plate 302 has a centralaperture 302 a, a movable part 302 b and a fixed part 302 c. The centralaperture 302 a is located at a center of the resonance plate 302 and iscorresponding to the convergence chamber 301 c of the gas inlet plate301. The movable part 302 b surrounds the central aperture 302 a and iscorresponding to the convergence chamber 301 c. The fixed part 302 c isdisposed around the periphery of the resonance plate 302 and securelyattached on the gas inlet plate 301.

Please refer to FIGS. 3A, 3B and 4A, again. The piezoelectric actuator303 includes a suspension plate 303 a, an outer frame 303 b, at leastone bracket 303 c, a piezoelectric element 303 d, at least one clearence303 e and a bulge 303E The suspension plate 303 a is square-shapedbecause the square suspension plate 303 a is more power-saving than thecircular suspension plate. Generally, the consumed power of thecapacitive load operated at the resonance frequency would induce as theresonance frequency raised. Since the resonance frequency of the squaresuspension plate 303 a is obviously lower than that of the circularsquare suspension plate, the consumed power of the square suspensionplate 303 a would be fewer. Therefore, the square suspension plate 303 ain this embodiment has the advantage of power-saving. In the embodiment,the outer frame 303 b is disposed around the periphery of the suspensionplate 303 a, and at least one bracket 303 c is connected between thesuspension plate 303 a and the outer frame 303 b for elasticallysupporting the suspension plate 303 a. The piezoelectric element 303 dhas a side, and the length of the side of the piezoelectric element 303d is less than or equal to that of the suspension plate 303 a. Thepiezoelectric element 303 d is attached on a surface of the suspensionplate 303 a. When a voltage is applied to the piezoelectric element 303d, the suspension plate 303 a is driven to undergo the bendingvibration. The at least one clearence 303 e is formed between thesuspension plate 303 a, the outer frame 303 b and the at least onebracket 303 c for allowing the gas to flow through. The bulge 303 f isformed on a surface of the suspension plate 303 a, opposite to thesurface of the suspension plate 303 a attached on the piezoelectricelement 303 d. In this embodiment, the bulge 303 f is formed by using anetching process on the suspension plate 303 a. Accordingly, the bulge303 f of the suspension plate 303 a is integrally formed and protrudesfrom the surface opposite to that attached with the piezoelectricelement 303 d, and formed a stepped structure.

Please refer to FIGS. 3A, 3B and 4A. In the embodiment, the gas inletplate 301, the resonance plate 302, the piezoelectric actuator 303, thefirst insulation plate 304, the conducting plate 305 and the secondinsulation plate 306 are stacked and assembled sequentially. A chamberspace 307 is formed between the suspension plate 303 a and the resonanceplate 302, and the chamber space 307 can be formed by filling a gapbetween the resonance plate 302 and the outer frame 303 b of thepiezoelectric actuator 303 with a material, such as a conductiveadhesive, but not limited thereto. Thus, a specific depth between theresonance plate 302 and the suspension plate 303 a is maintained toguide the gas to pass rapidly. In addition, since the resonance plate302 and the suspension plate 303 a are maintained at a suitabledistance, the contact interference therebetween is reduced and thegenerated noise is largely reduced. In other embodiments, the thicknessof the conductive adhesive filled into the gap between the resonanceplate 302 and the outer frame 303 b of the piezoelectric actuator 303can be reduced by increasing the height of the outer frame 303 b of thepiezoelectric actuator 303. Therefore, the entire assembling structureof actuating pump 30 would not indirectly influenced by the hot pressingtemperature and the cooling temperature, and avoiding the actualdistance between the suspension plate 303 a and the resonance plate 302of the chamber space 307 being affected by the thermal expansion andcontraction of the filling material of the conductive adhesive, but isnot limited thereto. In addition, since the transportation effect of theactuating pump 30 is affected by the chamber space 307, it is veryimportant to maintain a constant chamber space 307, so as to provide astable transportation efficiency of the actuating pump 30.

Please refer to FIG. 4B, in some other embodiments of the piezoelectricactuator 303, the suspension plate 303 a is formed by stamping to makeit extend at a distance in a direction away from the resonance plates302. The extended distance can be adjusted through the at least onebracket 303 c formed between the suspension plate 303 a and the outerframe 303 b. Consequently, the surface of the bulge 303 f disposed onthe suspension plate 303 a and the surface of the outer frame 303 b arenon-coplanar. The piezoelectric actuator 303 is attached to the fixedpart 302 c of the resonance plate 302 by hot pressing a small amount offilling materials, such as a conductive adhesive, applied to thecoupling surface of the outer frame 303 b, thereby assembling thepiezoelectric actuator 303 and the resonance plates 302 in combination.Therefore, the structure improvement of the chamber space 307 which isformed by directly stamping the suspension plate 303 a of thepiezoelectric actuator 303 as described above, the required modificationof the chamber space 307 can be achieved by adjusting the stampingdistance of the suspension plate 303 a of the piezoelectric actuator303. This can effectively simplify the structural design of the chamberspace 307, and also achieves the advantages of simplifying the processand shortening the processing time. In addition, the first insulatingplate 304, the conducting plate 305 and the second insulating plate 306are all thin frame-shaped sheets, but are not limited thereto, and aresequentially stacked on the piezoelectric actuator 303 to form theentire structure of actuating pump 30.

In order to understand the actuations of the actuating pump 30, pleaserefer to FIGS. 4C to 4E. Please refer to FIG. 4C first, when thepiezoelectric element 303 d of the piezoelectric actuator 303 isdeformed in response to an applied voltage, the suspension plate 303 ais driven to displace in the direction away from the resonance plate302. In that, the volume of the chamber space 307 is increased, anegative pressure is formed in the chamber space 307, and the gas in theconvergence chamber 301 c is introduced into the chamber space 307. Atthe same time, the resonance plate 302 is in resonance and is thusdisplaced synchronously, and thereby increased the volume of theconvergence chamber 301 c. Since the gas in the convergence chamber 301c is introduced into the chamber space 307, the convergence chamber 301c is also result in a negative pressure state, and the gas is inhaledinto the convergence chamber 301 c through the gas inlet apertures 301 aand the convergence channels 301 b. Then, as shown in FIG. 4D, thepiezoelectric element 303 d drives the suspension plate 303 a todisplace toward the resonance plate 302 to compress the chamber space307. Similarly, the resonance plate 302 is actuated and displaced awayfrom the suspension plate 303 a in resonance to the suspension plate 303a, and compress the air in the chamber space 307. Thus, the gas in thechamber space 307 is further transmitted to pass through the clearences303 e and achieves the effect of gas transportation. Finally, as shownin FIG. 4E, when the suspension plate 303 a resiliently move back to aninitial state, the resonance plate 302 displaces toward the suspensionplate 303 a due to its inertia momentum, and keep on pushes the gas inthe chamber space 307 toward the clearences 303 e, and the volume of theconvergence chamber 301 c is increased at the same time. Thus, the gasoutside can be continuously inhaled and passed through the gas inletapertures 301 a and the convergence channels 301 b, and converged in theconvergence chamber 301 c. By repeating the actuations illustrated inFIGS. 4C to 4E continuously, the actuating pump 30 can continuouslytransport the gas at high speed. The gas enters the gas inlet apertures301 a, flows through a flow path formed by the gas inlet plate 301 andthe resonance plate 3022 and result in a pressure gradient, and thentransported through the clearences 303 e, so as to achieve the operationof gas transporting of the actuating pump 30.

Please refer to FIGS. 1B to 1E. In the embodiment, the gas detectionmodule 4 includes a housing 4 a, a gas detection main part 4 b, acontrol circuit unit 4 c, an external connection device 4 d and a powersupply battery 4 e. In the embodiment, the housing 4 a includes at leastone gas inlet 41 a and at least one gas outlet 42 a. In the embodiment,the gas detection main part 4 b, the control circuit unit 4 c and theexternal connection are 4 d are covered and protected by the housing 4a. The external connection device 4 d is exposed out of the housing 4 a.The gas detection main part 4 b is disposed within the housing 4 a andin communication with the at least one gas inlet 41 a and the at leastone gas outlet 42 a of the housing 4 a for detecting the gas introducedfrom the outside of the housing 4 a to obtain the gas detection datum.In the embodiment, the control circuit unit 4 c includes amicroprocessor 41 c, a communicator 42 c and a power module 43 c, and isintegrally packaged and in electrical connection with the gas detectionmodule 4 b. In the embodiment, the external connection device 4 d isintegrally disposed on and in electrical connection with the controlcircuit unit 4 c and packaged. The power supply battery 4 e is connectedcorrespondingly to the external connection device 4 d to provide anoperating power to the power module 43 c of the control circuit unit 4c, so as to enabled the operation of gas detection main part 4 b.Preferably but not exclusively, the power supply battery 4 e has abuckle 4 f allowing a hanging belt 4 g to be buckled and wore on theuser for carry. In that, the gas detection module 4 is carried or woreby the user for detecting the gas in the surrounding environment toobtain a gas detection datum. The microprocessor 41 c of the controlcircuit unit 4 c receives the gas detection datum, outputs the gasdetection datum to the communicator 43 c for transmitting externally,and sends a target position through wireless communication transmission.Preferably but not exclusively, the wireless communication transmissionis one selected from the group consisting of Bluetooth communicationtransmission and ultra-wideband (UWB) communication transmission.

Please refer to FIGS. 5A to 5C, FIGS. 6A to 6B, FIG. 7 and FIGS. 8A to8B. In the embodiment, the gas detection main part 4 b includes a base41, a piezoelectric actuator 42, a driving circuit board 43, a lasercomponent 44, a particulate sensor 45 and an outer cover 46. The base 41includes a first surface 411, a second surface 412, a laser loadingregion 413, a gas-inlet groove 414, a gas-guiding-component loadingregion 415 and a gas-outlet groove 416. In the embodiment, the firstsurface 411 and the second surface 412 are two surfaces opposite to eachother. In the embodiment, the laser loading region 413 is hollowed outfrom the first surface 411 to the second surface 412. The gas-inletgroove 414 is recessed from the second surface 412 and disposed adjacentto the laser loading region 413. The gas-inlet groove 414 includes agas-inlet 414 a and two lateral walls. The gas-inlet 414 a is in fluidcommunication with an environment outside the base 41, and is spatiallycorresponding to an inlet opening 461 a of the outer cover 46. Atransparent window 414 b is opened on the two lateral walls and is influid communication with the laser loading region 413. Therefore, thefirst surface 411 of the base 41 is covered and attached by the outercover 46, and the second surface 412 is covered and attached by thedriving circuit board 43. Thus, the gas-inlet groove 414 defines agas-inlet path, as shown in FIG. 7 and FIG. 11A.

Please refer to FIGS. 6A and 6B. In the embodiment, thegas-guiding-component loading region 415 is recessed from the secondsurface 412 and in fluid communication with the gas-inlet groove 414. Aventilation hole 415 a penetrates a bottom surface of thegas-guiding-component loading region 415. In the embodiment, thegas-outlet groove 416 includes a gas-outlet 416 a, and the gas-outlet416 a is spatially corresponding to the outlet opening 461 b of theouter cover 46. The gas-outlet groove 416 includes a first section 416 band a second section 416 c. The first section 416 b hollowed out fromthe first surface 411 is spatially corresponding to a verticalprojection area of the gas-guiding-component loading region 415. Thesecond section 416 c is hollowed out from the first surface 411 to thesecond surface 412 in a region where the first surface 411 is notaligned with the vertical projection area of the gas-guiding-componentloading region 415. The first section 416 b and the second section 416 care connected to form a stepped structure. Moreover, the first section416 b of the gas-outlet groove 416 is in fluid communication with theventilation hole 415 a of the gas-guiding-component loading region 415,and the second section 416 c of the gas-outlet groove 416 is in fluidcommunication with the gas-outlet 416 a. In that, when the first surface411 of the base 41 is attached and covered by the outer cover 46, andthe second surface 412 of the base 41 is attached and covered by thedriving circuit board 43, the gas-outlet groove 416 defines a gas-outletpath, as shown in FIGS. 11B and 11C.

Please refer to FIG. 5C and FIG. 7. In the embodiment, the lasercomponent 44 and the particulate sensor 45 are disposed on the drivingcircuit board 43 and accommodated in the base 41. In order to describethe positions of the laser component 44 and the particulate sensor 45 inthe base 41, the driving circuit board 43 is omitted in FIG. 7 forclarity. Please refer to FIG. 5C, FIG. 6B, FIG. 7 and FIG. 12. In theembodiment, the laser component 44 is accommodated in the laser loadingregion 413 of the base 41, and the particulate sensor 45 is accommodatedin the gas-inlet groove 414 of the base 41 and aligned to the lasercomponent 44. In addition, the laser component 44 is spatiallycorresponding to the transparent window 414 b, a light beam emitted bythe laser component 44 passes through the transparent window 414 b andis irradiated into the gas-inlet groove 414. A light beam path emittedfrom the laser component 44 passes through the transparent window 414 band extends in a direction perpendicular to the gas-inlet groove 414. Inthe embodiment, a projecting light beam emitted from the laser component44 passes through the transparent window 414 b and enters the gas-inletgroove 414, and suspended particles contained in the gas passing throughthe gas-inlet groove 414 is irradiated by the projecting light beam.When the suspended particles contained in the gas are irradiated togenerate scattered light spots, the scattered light spots are detectedand calculated by the particulate sensor 45 for obtaining relatedinformation in regard to the sizes and the concentration of thesuspended particles contained in the gas. In the embodiment, theparticulate sensor 45 is a PM2.5 sensor.

Please refer to FIG. 8A and FIG. 8B. The piezoelectric actuator 42 isaccommodated in the gas-guiding-component loading region 415 of the base41. Preferably but not exclusively, the gas-guiding-component loadingregion 415 is square and includes four positioning protrusions 415 bdisposed at four corners of the gas-guiding-component loading region415, respectively. The piezoelectric actuator 42 is disposed in thegas-guiding-component loading region 415 through the four positioningprotrusions 415 b. In addition, as shown in FIGS. 6A, 6B, 11B and 11C,the gas-guiding-component loading region 415 is in fluid communicationwith the gas-inlet groove 414. When the piezoelectric actuator 42 isenabled, the gas in the gas-inlet groove 414 is inhaled by thepiezoelectric actuator 42, so that the gas flows into the piezoelectricactuator 42. Thereafter, the gas is transported into the gas-outletgroove 416 through the ventilation hole 415 a of thegas-guiding-component loading region 415.

Please refer to FIGS. 5B and 5C. In the embodiment, the driving circuitboard 43 covers and is attached to the second surface 412 of the base41, and the laser component 44 is positioned and disposed on the drivingcircuit board 43, and is electrically connected to the driving circuitboard 43. The particulate sensor 45 is positioned and disposed on thedriving circuit board 43, and is electrically connected to the drivingcircuit board 43. Preferably but not exclusively, the particulate sensor25 is disposed at an orthogonal position where the gas-inlet groove 214intersects with the light beam path of the laser component 24. The outercover 46 covers the base 41 and is attached to the first surface 411 ofthe base 41. Moreover, the outer cover 46 includes a side plate 461. Theside plate 461 has an inlet opening 461 a and an outlet opening 461 b.When the outer cover 46 covers the base 41, the inlet opening 461 a isspatially corresponding to the gas-inlet 414 a of the base 41 (as shownin FIG. 11A), and the outlet opening 461 b is spatially corresponding tothe gas-outlet 416 a of the base 41 (as shown in FIG. 11C).

Please refer to FIGS. 9A and 9B. In the embodiment, the piezoelectricactuator 42 includes a gas-injection plate 421, a chamber frame 422, anactuator element 423, an insulation frame 424 and a conductive frame425. In the embodiment, the gas-injection plate 421 is made by aflexible material and includes a suspension plate 4210 and a hollowaperture 4211. The suspension plate 4210 is a sheet structure andpermitted to undergo a bending deformation. Preferably but notexclusively, the shape and the size of the suspension plate 4210 arecorresponding to an inner edge of the gas-guiding-component loadingregion 415. The shape of the suspension plate 4210 is one selected fromthe group consisting of a square, a circle, an ellipse, a triangle and apolygon. The hollow aperture 4211 passes through a center of thesuspension plate 4210, so as to allow the gas to flow through.

In the embodiment, the chamber frame 422 is carried and stacked on thegas-injection plate 421. In addition, the shape of the chamber frame 422is corresponding to the gas-injection plate 421. The actuator element423 is carried and stacked on the chamber frame 422. A resonance chamber426 is collaboratively defined by the actuator element 423, the chamberframe 422 and the suspension plate 4210 and formed between the actuatorelement 423, the chamber frame 422 and the suspension plate 4210. Theinsulation frame 424 is carried and stacked on the actuator element 423and the appearance of the insulation frame 424 is similar to that of thechamber frame 422. The conductive frame 425 is carried and stacked onthe insulation frame 424, and the appearance of the conductive frame 425is similar to that of the insulation frame 424. In addition, theconductive frame 425 includes a conducting pin 4251 and a conductingelectrode 4252. The conducting pin 4251 is extended outwardly from anouter edge of the conductive frame 425, and the conducting electrode4252 is extended inwardly from an inner edge of the conductive frame425. Moreover, the actuator element 423 further includes a piezoelectriccarrying plate 4231, an adjusting resonance plate 4232 and apiezoelectric plate 4233. The piezoelectric carrying plate 4231 iscarried and stacked on the chamber frame 422. The adjusting resonanceplate 4232 is carried and stacked on the piezoelectric carrying plate4231. The piezoelectric plate 4233 is carried and stacked on theadjusting resonance plate 4232. The adjusting resonance plate 4232 andthe piezoelectric plate 4233 are accommodated in the insulation frame424. The conducting electrode 4252 of the conductive frame 425 iselectrically connected to the piezoelectric plate 4233. In theembodiment, the piezoelectric carrying plate 4231 and the adjustingresonance plate 4232 are made by a conductive material. Thepiezoelectric carrying plate 4231 includes a piezoelectric pin 4234. Thepiezoelectric pin 4234 and the conducting pin 4251 are electricallyconnected to a driving circuit (not shown) of the driving circuit board43, so as to receive a driving signal, such as a driving frequency and adriving voltage. In that, an electric circuit for the driving signal isformed by the piezoelectric pin 4234, the piezoelectric carrying plate4231, the adjusting resonance plate 4232, the piezoelectric plate 4233,the conducting electrode 4252, the conductive frame 425 and theconducting pin 4251. Moreover, the insulation frame 424 is insulatedbetween the conductive frame 425 and the actuator element 423, so as toavoid the occurrence of a short circuit. Thereby, the driving signal istransmitted to the piezoelectric plate 4233. After receiving the drivingsignal such as the driving frequency and the driving voltage, thepiezoelectric plate 4233 deforms due to the piezoelectric effect, andthe piezoelectric carrying plate 4231 and the adjusting resonance plate4232 are further driven to generate the bending deformation in thereciprocating manner.

As described above, the adjusting resonance plate 4232 is locatedbetween the piezoelectric plate 4233 and the piezoelectric carryingplate 4231 and served as a buffer between the piezoelectric plate 4233and the piezoelectric carrying plate 4231. Thereby, the vibrationfrequency of the piezoelectric carrying plate 4231 is adjustable.Basically, the thickness of the adjusting resonance plate 4232 isgreater than the thickness of the piezoelectric carrying plate 4231, andthe thickness of the adjusting resonance plate 4232 is adjustable,thereby adjusting the vibration frequency of the actuator element 423.

Please refer to FIGS. 9A to 9C and FIG. 10A. In the embodiment, thegas-injection plate 421, the chamber frame 422, the actuator element423, the insulation frame 424 and the conductive frame 425 are stackedand positioned in the gas-guiding-component loading region 415sequentially, so that the piezoelectric actuator 42 is supported andpositioned in the gas-guiding-component loading region 415. The bottomof the gas-injection plate 421 is fixed on the four positioningprotrusions 415 b of the gas-guiding-component loading region 415 forsupporting and positioning, so that the suspension plate 4210 of thegas-injection plate 421 and an inner edge of the gas-guiding-componentloading region 415 define a plurality of clearences 4212 in thepiezoelectric actuator 42 for gas flowing.

Please refer to FIG. 10A. A flowing chamber 427 is formed between thegas-injection plate 421 and the bottom surface of thegas-guiding-component loading region 415. The flowing chamber 427 is influid communication with the resonance chamber 426 between the actuatorelement 423, the chamber frame 422 and the suspension plate 4210 throughthe hollow aperture 4211 of the gas-injection plate 421. Throughcontrolling the vibration frequency of the gas in the resonance chamber426 and making it close to the vibration frequency of the suspensionplate 4210, the Helmholtz resonance effect is induced between theresonance chamber 426 and the suspension plate 4210, and therebyimproves the efficiency of gas transportation.

Please refer to FIG. 10B. When the piezoelectric plate 4233 is movedaway from the bottom surface of the gas-guiding-component loading region415, the suspension plate 4210 of the gas-injection plate 421 is drivento move away from the bottom surface of the gas-guiding-componentloading region 415 by the piezoelectric plate 4233. In that, the volumeof the flowing chamber 427 is expanded rapidly, the internal pressure ofthe flowing chamber 427 is decreased to form a negative pressure, andthe gas outside the piezoelectric actuator 42 is inhaled through theclearences 4212 and enters the resonance chamber 426 through the hollowaperture 4211. Consequently, the pressure in the resonance chamber 426is increased to generate a pressure gradient.

Further as shown in FIG. 10C, when the suspension plate 4210 of thegas-injection plate 421 is driven by the piezoelectric plate 4233 tomove towards the bottom surface of the gas-guiding-component loadingregion 415, the gas in the resonance chamber 426 is discharged outrapidly through the hollow aperture 4211, and the gas in the flowingchamber 427 is compressed. In that, the converged gas is quickly andmassively ejected out of the flowing chamber 427 in a gas state close toan ideal gas state of the Benulli's law, and transported to theventilation hole 415 a of the gas-guiding-component loading region 415.By repeating the above actions shown in FIG. 10B and FIG. 10C, thepiezoelectric plate 4233 is driven to generate the bending deformationin a reciprocating manner According to the principle of inertia, the gaspressure inside the resonance chamber 426 after exhausting is lower thanthe equilibrium gas pressure outside, and the gas is introduced into theresonance chamber 426 again. Moreover, the vibration frequency of thegas in the resonance chamber 426 is controlled to be close to thevibration frequency of the piezoelectric plate 4233, so as to generatethe Helmholtz resonance effect and to achieve the gas transportation athigh speed and in large quantities.

Please refer to FIGS. 11A to 11C. FIGS. 11A to 11C schematicallyillustrate gas flowing paths of the gas detection main part 4 b.Firstly, as shown in FIG. 11A, the gas is inhaled through the inletopening 461 a of the outer cover 46, flows into the gas-inlet groove 414of the base 41 through the gas-inlet 414 a, and is transported to theposition of the particulate sensor 45. Further as shown in FIG. 11B, thepiezoelectric actuator 42 is enabled continuously to inhale the gas inthe gas-inlet path, so as to facilitate the gas to be introduced, andtransported above the particulate sensor 45 rapidly and stably. At thistime, a projecting light beam emitted from the laser component 44 passesthrough the transparent window 414 b to irritate the suspended particlescontained in the gas flowing above the particulate sensor 45 in thegas-inlet groove 414. When the suspended particles contained in the gasare irradiated to generate scattered light spots, the scattered lightspots are detected and calculated by the particulate sensor 45 forobtaining related information in regard to the sizes and theconcentration of the suspended particles contained in the gas.Furthermore, the gas above the particle sensor 45 is continuously drivenand transported by the piezoelectric actuator 42, flowing into theventilation hole 415 a of the gas-guiding-component loading region 415,and transported to the first section 416 b of the gas-outlet groove 416.As shown in FIG. 11C, after the gas flows into the first section 416 bof the gas-outlet groove 416, the gas is continuously transported intothe first section 416 b by the piezoelectric actuator 42, and the gas inthe first section 416 b is pushed to the second section 416 c. Finally,the gas is discharged out through the gas-outlet 416 a and the outletopening 461 b.

As shown in FIG. 12, the base 41 further includes a light trappingregion 417. The light trapping region 417 is hollowed out from the firstsurface 411 to the second surface 412 and is spatially corresponding tothe laser loading region 413. In the embodiment, the light trappingregion 417 is corresponding to the transparent window 414 b so that thelight beam emitted by the laser component 44 is projected into the lighttrapping region 417. The light trapping region 417 includes a lighttrapping structure 417 a having an oblique cone surface. The lighttrapping structure 417 a is spatially corresponding to the light beampath emitted from the laser component 44. In addition, the projectinglight beam emitted from the laser component 44 is reflected into thelight trapping region 417 through the oblique cone surface of the lighttrapping structure 417 a. It prevents the projecting light beam frombeing reflected to the position of the particulate sensor 45. In theembodiment, a light trapping distance D is maintained between thetransparent window 414 b and a position where the light trappingstructure 417 a receives the projecting light beam. Preferably but notexclusively, the light trapping distance D is greater than 3 mm. Whenthe light trapping distance D is less than 3 mm, the projecting lightbeam projected on the light trapping structure 417 a could be easilyreflected back to the position of the particulate sensor 45 directly dueto excessive stray light generated after reflection, and resulted indistortion of detection accuracy.

Please refer to FIG. 5C and FIG. 12. The gas detection main part 4 b ofthe gas detection module 4 in the present disclosure can not only detectthe suspended particles in the gas, but also detect the characteristicsof the introduced gas. Preferably but not exclusively, the gas can bedetected is at least one selected from the group consisting offormaldehyde, ammonia, carbon monoxide, carbon dioxide, oxygen, ozoneand a combination thereof. In the embodiment, the gas detection mainpart 4 b of the gas detection module 4 further includes a firstvolatile-organic-compound sensor 47 a. The firstvolatile-organic-compound sensor 47 a is positioned and disposed on thedriving circuit board 43, electrically connected to the driving circuitboard 43, and accommodated in the gas-outlet groove 416, so as to detectthe gas flowing through the gas-outlet path of the gas-outlet groove416. Thus, the concentration or the characteristics of volatile organiccompounds contained in the gas in the gas-outlet path is detected.Alternatively, in an embodiment, the gas detection main part 4 b of thegas detection module 4 further includes a secondvolatile-organic-compound sensor 47 b. The secondvolatile-organic-compound sensor 47 b is positioned and disposed on thedriving circuit board 43, and electrically connected to the drivingcircuit board 43. In the embodiment, the secondvolatile-organic-compound sensor 47 b is accommodated in the lighttrapping region 417. Thus, the concentration or the characteristics ofvolatile organic compounds contained in the gas flowing through thegas-inlet path of the gas-inlet groove 414 and transported into thelight trapping region 417 through the transparent window 414 b isdetected.

Please refer to FIG. 1A and FIG. 2A. In the embodiment, the controllingmodule 5 is disposed within the main body 1 and electrically connectedto the gas guider 3. The controlling module 5 includes a communicationunit 51 for receiving the gas detection datum transmitted by thecommunicator 42 c of the gas detection module 4, and enabling thecontrolling module 5 to process, calculate and control the enablementand disablement of the gas purifying operations of the gas guider 3. Inthe embodiment, the driving movement module 6 is disposed within themain body 1 and electrically connected to and controlled by thecontrolling module 5. Preferably but not exclusively, the drivingmovement module 6 includes a plurality of rolling components 61 disposedon a bottom of the main body 1 and exposed out to contact with theground, so that the plurality of rolling components 61 are controlled tomove of the main body 1. In the embodiment, the position determiningunit 7 includes a plurality of positioning sensors (not shown) disposedwithin the main body 1 and electrically connected to the controllingmodule 5, so as to detect an obstacle outside the main body 1, obtainposition information of the main body 1 and transmit the positioninformation to the controlling module 5 for processing and calculating.Preferably but not exclusively, the plurality of positioning sensors ofthe position determining unit include an obstacle sensor, and theobstacle sensor includes one selected from the group consisting of aninfrared sensor, an ultrasonic sensor and a radio frequencyidentification (RF) sensor, so as to allow to detect the distance of theobstacle and avoid from collision while the main body 1 is moved.Preferably but not exclusively, the plurality of positioning sensors ofthe position determining unit 7 include a direction sensitive device(DSD), for receiving an external identification signal to detect theposition of the main body 1. Thus, the position information of the mainbody 1 can be formed and transmitted to the controlling module 5 forprocessing and calculating. Preferably but not exclusively, theplurality of positioning sensors of the position determining unit 7include an inertial measurement sensor, which includes a gyroscopesensor, an acceleration sensor and a geomagnetic sensor, so as to allowto measure the accelerations in the forward direction, the lateraldirection and the height direction of the main body 1 and the angularvelocities of rolling, pitching and yaw of the main body 1. Theaccelerations and angular velocities obtained by the inertialmeasurement sensor is integrated by the control circuit unit 4 c toperform calculations of the speed and heading angle of the plurality ofrolling components 61 of the driving movement module 6. Preferably butnot exclusively, the plurality of positioning sensors of the positiondetermining unit 7 include a motor sensor for detecting the movement ofthe plurality of rolling components 61 of the driving movement module 6.Thus, the control circuit unit 4 c is capable of performing acompensation control of the plurality of rolling components 61 of thedriving movement module 6 to change the rotation speed of the pluralityof rolling members 61. Preferably but not exclusively, the plurality ofpositioning sensors of the position determining unit 7 include a cliffsensor for detecting the cliff in the front of the main body 1.

According to the above description, in FIG. 13, the controlling module 5processes and calculates the gas detection datum, and controls theenablement and disablement of the gas guider 3 for filtration andpurification according to the gas detection datum, which is transmittedfrom the communicator 42 c of the gas detection module 4 and received bythe communication unit 51 of the controlling module 5. At the same time,the communication unit 51 of the controlling module 5 receives andcalculates the target position sent from the communicator 42 c of thegas detection module 4 through wireless communication transmission toestimate the target track from the remaining distance relative to thetarget position and the current position information of the main body 1,whereby the plurality of rolling components 61 of the driving movementmodule 6 are driven in accompany with the plurality of positioningsensors of the position determining unit includes to move the main body1 along the target track to reach the area nearby the user for purifyingthe gas by the purification module 2 and the gas guider 3, so as topurify the gas that the user is going to breathe previously. Thus, thegas detection module 4 carried by the user is combined with the mobileman body 1 carrying the purification module 2, the gas guider 3, thecontrolling module 5, the driving movement module 6 and the positiondetermining unit 7, so as to complete the mobile gas detection andcleaning device of the present invention which is helpful of solving theair quality problem in the environment around the user in real time.

In summary, the present disclosure provides a mobile gas detection andcleaning device. A gas detection module allows a user to carry fordetecting the gas in the surrounding environment to obtain a gasdetection datum, and a target position is sent therefrom wirelessly.Moreover, a purification module, a gas guider, a controlling module anda driving movement module are disposed on a mobile main body. Thecontrolling module receives the gas detection datum transmitted from thegas detection module to process, calculate and control the enablementand disablement of the gas guider for filtration and purification.Moreover, the controlling module receives the target position sent fromthe gas detection module wirelessly and performs a calculation based onthe target position to estimate a target track from a remaining distancerelative to the target position and a current position information ofthe main body, whereby the driving movement module is driven to move themain body along the target track. Thus, the gas detection module carriedby the user is combined with the mobile man body carrying thepurification module, the gas guider, the controlling module, the drivingmovement module and the position determining unit, so as to complete themobile gas detection and cleaning device of the present invention andaccomplish the object of purifying the gas of the area nearby the user.The present disclosure fulfills the requirements of industrialapplicability and inventive steps.

While the invention has been described in terms of what is presentlyconsidered to be the most practical and preferred embodiments, it is tobe understood that the invention needs not be limited to the disclosedembodiment. On the contrary, it is intended to cover variousmodifications and similar arrangements included within the spirit andscope of the appended claims which are to be accorded with the broadestinterpretation so as to encompass all such modifications and similarstructures.

What is claimed is:
 1. A mobile gas detection and cleaning device,comprising: a main body comprising at least one inlet, at least oneoutlet and a gas-flow channel, wherein the gas-flow channel is disposedbetween the at least one inlet and the at least one outlet; apurification module disposed in the gas-flow channel for filtering gasintroduced through the gas-flow channel; a gas guider disposed in thegas-flow channel and located at a side of the purification module,wherein the gas is inhaled by the gas guider through the at least oneinlet, flows through the purification module for filtration andpurification, and is discharged out through the at least one outlet; agas detection module allowing a user to carry for detecting the gas in aenvironment surrounding the user to obtain a gas detection datum,transmitting the gas detection datum externally, and sending a targetposition through wireless transmission; a controlling module disposedwithin the main body and electrically connected to the gas guider,wherein the controlling module receives the gas detection datumtransmitted from the gas detection module to process and calculate thegas detection datum and control an enablement and a disablement of thegas guider for filtration and purification; a driving movement moduledisposed within the main body and electrically connected to thecontrolling module, wherein the driving movement module comprises aplurality of rolling components disposed on a bottom of the main bodyand exposed out to contact with the ground, so that the plurality ofrolling components are controlled to move the main body; and a positiondetermining unit comprising a plurality of positioning sensors, whereinthe plurality of positioning sensors are disposed within the main bodyand electrically connected to the controlling module, so as to detect anobstacle outside the main body, obtain position information of the mainbody and transmit the position information of the main body to thecontrolling module for processing and calculating; wherein thecontrolling module receives the target position sent from the gasdetection module wirelessly and performs a calculation based on thetarget position to estimate a target track from a remaining distancerelative to the target position and a current position information ofthe main body, whereby the plurality of rolling components of thedriving movement module are driven to move the main body along thetarget track to reach an area nearby the user for purifying the gas. 2.The mobile gas detection and cleaning device according to claim 1,wherein the purification module is a filter unit comprising a filterscreen, wherein the gas introduced is filtered through the filter screenfor filtration and purification, wherein the filter screen is oneselected from the group consisting of an electrostatic filter screen, anactivated carbon filter screen and a high efficiency particulate airfilter screen.
 3. The mobile gas detection and cleaning device accordingto claim 1, wherein the purification module is a photo-catalyst unitcomprising a photo-catalyst and an ultraviolet lamp, and thephoto-catalyst is irradiated with the ultraviolet lamp to purify thegas.
 4. The mobile gas detection and cleaning device according to claim1, wherein the purification module is a photo-plasma unit comprising ananometer irradiation tube, wherein the gas containing volatileformaldehyde, toluene and volatile organic gases is purified byirradiating with the nanometer irradiation tube.
 5. The mobile gasdetection and cleaning device according to claim 1, wherein thepurification module is a negative ionizer comprising at least oneelectrode wire, at least one dust collecting plate and a boost powersupply, wherein when a high voltage is discharged through the electrodewire, particles contained in the gas introduced are positively chargedand attached to the dust collecting plate negatively charged, so as topurify the gas.
 6. The mobile gas detection and cleaning deviceaccording to claim 1, wherein the purification module is a plasma ionunit comprising an upper electric-field protection screen, a highefficiency particulate air filter screen, a high-voltage dischargeelectrode, a lower electric-field protection screen and a boost powersupply device, wherein the boot power supply device provides a highvoltage to the high-voltage discharge electrode to discharge to form ahigh-voltage plasma column with plasma ion, so as to purify the gas bythe plasma ion.
 7. The mobile gas detection and cleaning deviceaccording to claim 1, wherein the gas guider is a fan.
 8. The mobile gasdetection and cleaning device according to claim 1, wherein the gasguider is an actuating pump.
 9. The gas detection purification accordingto claim 8, wherein the actuating pump comprises: a gas inlet platehaving at least one gas inlet aperture, at least one convergencechannel, and a convergence chamber, wherein the at least one gas inletaperture is disposed to inhale the gas, the at least one gas inletaperture correspondingly penetrates through the gas inlet plate and influid communication with the at least one convergence channel, and theat least one convergence channel is converged into the convergencechamber, so that the gas inhaled through the at least one gas inletaperture is converged into the convergence chamber; a resonance platedisposed on the gas inlet plate and having a central aperture, a movablepart and a fixed part, wherein the central aperture is disposed at acenter of the resonance plate, and corresponds to the center of theconvergence chamber of the gas inlet plate, the movable part surroundsthe central aperture and corresponds to the convergence chamber, and thefixed part surrounds the movable part and is fixedly attached on the gasinlet plate; and a piezoelectric actuator correspondingly disposed onthe resonance plate; wherein a chamber space is formed between theresonance plate and the piezoelectric actuator, so that when thepiezoelectric actuator is driven, the gas introduced from the at leastone gas inlet aperture of the gas inlet plate is converged to theconvergence chamber through the at least one convergence channel, andflows through the central aperture of the resonance plate so as toproduce a resonance by the movable part of the resonance plate and thepiezoelectric actuator to transport the gas.
 10. The mobile gasdetection and cleaning device according to claim 1, wherein the gasdetection module comprises: a housing comprising at least one gas inletand at least one gas outlet; a gas detection main part disposed withinthe housing and in fluid communication with the at least one gas inletand the at least one gas outlet of the housing for detecting the gasintroduced from the outside of the housing to obtain the gas detectiondatum; a control circuit unit comprising a microprocessor, acommunicator and a power module integrally packaged and in electricalconnection with the gas detection main part; an external connectiondevice, disposed on the control circuit unit and integrally packagedinto one piece in electrical connection with the control circuit unit;and a power supply battery connected correspondingly to the externalconnection device to provide an operating power to the power module ofthe control circuit unit, so as to enable the gas detection main part,wherein the power supply battery has a buckle allowing to be buckled andwore on the user for carry; wherein the microprocessor of the controlcircuit unit receives the gas detection datum, outputs the gas detectiondatum to the communicator for transmitting externally, and sends thetarget position through wireless communication transmission, wherein thecontrolling module receives the gas detection datum transmitted from thecommunicator to process and calculate the gas detection datum andcontrol the enablement and disablement of the gas guider for filtrationand purification.
 11. The mobile gas detection and cleaning deviceaccording to claim 10, wherein the controlling module comprises acommunication unit for receiving the gas detection datum transmitted bythe communicator of the gas detection module, so as to allow thecontrolling module to process and calculate the gas detection datum andcontrol the enablement and disablement of the gas guider, wherein thecommunication unit receives the target position sent from thecommunicator of the gas detection module through wireless communicationtransmission, and allows the controlling module to perform thecalculation based on the target position to estimate the target trackfrom the remaining distance relative to the target position and thecurrent position information of the main body, whereby the plurality ofrolling components of the driving movement module are driven to move themain body along the target track.
 12. The mobile gas detection andcleaning device according to claim 11, wherein the wirelesscommunication transmission is one selected from the group consisting ofBluetooth communication transmission and ultra-wideband (UWB)communication transmission.
 13. The mobile gas detection and cleaningdevice according to claim 1, wherein the plurality of positioningsensors of the position determining unit comprise an obstacle sensor,and the obstacle sensor includes one selected from the group consistingof an infrared sensor, an ultrasonic sensor and a radio frequencyidentification (RF) sensor.
 14. The mobile gas detection and cleaningdevice according to claim 1, wherein the plurality of positioningsensors of the position determining unit comprise one selected from thegroup consisting of a direction sensitive device (DSD), an inertialmeasurement sensor, a gyroscope sensor, an acceleration sensor, ageomagnetic sensor, a motor sensor and a combination thereof.
 15. Themobile gas detection and cleaning device according to claim 10, whereinthe gas detection main part comprises: a base comprising: a firstsurface; a second surface opposite to the first surface; a laser loadingregion hollowed out from the first surface to the second surface; agas-inlet groove recessed from the second surface and disposed adjacentto the laser loading region, wherein the gas-inlet groove comprises agas-inlet and two lateral walls, the gas-inlet is in communication withan environment outside the base, and a transparent window is opened onthe two lateral walls and is in communication with the laser loadingregion; a gas-guiding-component loading region recessed from the secondsurface and in communication with the gas-inlet groove, wherein aventilation hole penetrates a bottom surface of thegas-guiding-component loading region, and the gas-guiding-componentloading region has four positioning protrusions disposed at four cornersthereof; and a gas-outlet groove recessed from the first surface,spatially corresponding to the bottom surface of thegas-guiding-component loading region, and hollowed out from the firstsurface to the second surface in a region where the first surface is notaligned with the gas-guiding-component loading region, wherein thegas-outlet groove is in communication with the ventilation hole, and agas-outlet is disposed in the gas-outlet groove and in communicationwith the environment outside the base; a piezoelectric actuatoraccommodated in the gas-guiding-component loading region; a drivingcircuit board covered and attached to the second surface of the base; alaser component positioned and disposed on the driving circuit board,electrically connected to the driving circuit board, and accommodated inthe laser loading region, wherein a light beam path emitted from thelaser component passes through the transparent window and extends in adirection perpendicular to the gas-inlet groove; a particulate sensorpositioned and disposed on the driving circuit board, electricallyconnected to the driving circuit board, at a position where thegas-inlet groove intersects the light beam path of the laser componentin the orthogonal direction, so that suspended particles passing throughthe gas-inlet groove and irradiating by a projecting light beam emittedfrom the laser component are detected; and an outer cover covering thefirst surface of the base and comprising a side plate, wherein the sideplate has an inlet opening spatially corresponding to the gas-inlet andan outlet opening spatially corresponding to the gas-outlet,respectively, wherein the first surface of the base is covered with theouter cover, and the second surface of the base is covered with thedriving circuit board, so that a gas-inlet path is defined by thegas-inlet groove, and an outlet path is defined by the gas-outletgroove, wherein the gas is inhaled from the environment outside the baseby the piezoelectric actuator, transported into the gas-inlet pathdefined by the gas-inlet groove through the inlet opening, and passedthrough the particulate sensor to detect the concentration of thesuspended particles contained in the gas, and the gas transportedthrough the piezoelectric actuator is transported into the outlet pathdefined by the gas-outlet groove through the ventilation hole and thendischarged through the outlet opening.
 16. The mobile gas detection andcleaning device according to claim 15, wherein the base comprises alight trapping region hollowed out from the first surface to the secondsurface spatially corresponding to the laser loading region, wherein thelight trapping region comprises a light trapping structure having anoblique cone surface spatially corresponding to the light beam path,wherein a light trapping distance is maintained between the transparentwindow and a position where the light trapping structure receives theprojecting light beam, wherein the light trapping distance is greaterthan 3 mm.
 17. The mobile gas detection and cleaning device according toclaim 15, wherein the particulate sensor is a PM2.5 sensor.
 18. Themobile gas detection and cleaning device according to claim 15, whereinthe piezoelectric actuator comprises: a gas-injection plate comprising asuspension plate and a hollow aperture, wherein the suspension plate ispermitted to undergo a bending deformation, and the hollow aperture isformed at a center of the suspension plate; a chamber frame stacked onthe suspension plate; an actuator element stacked on the chamber framefor being driven in response to an applied voltage to undergo thebending deformation in a reciprocating manner; an insulation framestacked on the actuator element; and a conductive frame stacked on theinsulation frame, wherein the gas-injection plate is fixed on the fourpositioning protrusions of the gas-guiding-component loading region forsupporting and positioning, and the gas-injection plate and an inneredge of the gas-guiding-component loading region define a clearence forgas to flow therethrough, a flowing chamber is formed between thegas-injection plate and the bottom surface of the gas-guiding-componentloading region, a resonance chamber is formed between the actuatorelement, the chamber frame and the suspension plate, wherein when theactuator element is enabled and the gas-injection plate is driven tomove in resonance state, the suspension plate of the gas-injection plateis driven to generate the bending deformation in a reciprocating manner,and the gas is inhaled through the clearence, flowing into anddischarged out of the flowing chamber, so as to achieve gastransportation.
 19. The mobile gas detection and cleaning deviceaccording to claim 15, wherein the gas detection main part furthercomprises a first volatile-organic-compound sensor positioned anddisposed on the driving circuit board, electrically connected to thedriving circuit board, and accommodated in the gas-outlet groove, so asto detect the gas flowing through the outlet path of the gas-outletgroove.
 20. The mobile gas detection and cleaning device according toclaim 16, wherein the gas detection main part further comprises a secondvolatile-organic-compound sensor positioned and disposed on the drivingcircuit board, electrically connected to the driving circuit board, andaccommodated in the light trapping region, so as to detect the gasflowing through the gas-inlet path of the gas-inlet groove andtransported into the light trapping region through the transparentwindow.